[Eclipse]

Well, if we speak of realism...then the mobs would be very pre-disposed to attack the healers and casters.
I believe that agro-lock is basically a thing of the past. So we'll see what happens I guess. I think the skill would be for the tank to be able to put himself between his enemy and his squishie teammates at all times even when his enemy is obviously trying to attack someone other than the tank. After a short while of unsuccessful attempts at squashing that robed guy who keeps pelting him with fire, he would again turn to the tank in a fear-blinded rage.

My opinion only.

-Eclipse